Impacts of lateral spacing on the spatial variations in water use and grain yield of spring wheat plants within different rows in the drip irrigation system

Lv, Zhaoyan; Diao, Ming; Li, Weihua; Cai, Jian; Zhou, Qin; Xiao, Wang; Dai, Tingbo; Cao, Weixing; Jiang, Dong

doi:10.1016/j.agwat.2018.09.015

Cited by 19 publications

(38 citation statements)

References 45 publications

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“…The rise in yield under D 40 can be explained in terms of high values of yield components in relative treatments. These results corroborate well with Lv et al [34] findings who showed that yield reduction in widened lateral rows during two consecutive experimental seasons was 9.96% and 8.52% as compared to the closer lateral lines and this reduction was mostly ascribed to reduced grain rate per spike along with 1000-grain weight as observed in our study (Table 4). Mostafa et al [36] also stated that continuous soil moisture availability in wheat root zone might be responsible for highest values of yield and yield attributes when using double drip irrigation lateral lines rather than single lateral lines.…”

Section: Effects Of Different Ls and Nam On Grain Yieldsupporting

confidence: 93%

“…Widened lateral spacing might create water deficit conditions that led to decrease in crop growth characteristics. Previous studies have also reported a decrease in leaf area caused by water deficit in widened lateral spacing [26,34]. Water and nitrogen deficiency limits the cell processes like cell elongation and cell division that results in reduction of crop growth [35].…”

Section: Effects Of Different Ls and Nam On Crop Growthmentioning

confidence: 95%

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Suitable nitrogen application mode and lateral spacing for drip-irrigated winter wheat in North China Plain

Zain

Chen

et al. 2021

PLoS ONE

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To propose an appropriate nitrogen application mode and suitable drip irrigation lateral spacing, a field experiment was conducted during 2017–2018 and 2018–2019 growing seasons to quantify the different drip irrigation lateral spacings and nitrogen fertigation strategies effects on winter wheat growth, yield, and water use efficiency (WUE) in the North China Plain (NCP). The experiment consisted of three drip irrigation lateral spacing (LS) (40, 60, and 80 cm, referred to as D40, D60, and D80 respectively) and three percentage splits of nitrogen application modes (NAM) (basal and top dressing application ratio as 50:50 (N50:50), 25:75 (N25:75), and 0:100 (N0-100) respectively). The experimental findings depicted that yield and its components, and WUE were markedly affected by LS and NAM. Fertigation of winter wheat at N25:75 NAM notably (P<0.05) increased the grain yield by 4.88%, 1.83% and 8.03%, 4.61%, and WUE by 3.10%, 3.18% and 5.37%, 7.82%, compared with those at NAM N50:50 and N0:100 in 2017–2018 and 2018–2019 growing seasons, respectively. LS D40 appeared very fruitful in terms of soil moisture and nitrogen distribution, WUE, grain yield, and yield components than that of other LS levels. The maximum grain yield (8.73 and 9.40 t ha-1) and WUE (1.70 and 1.95 kg m-3) were obtained under D40N25:75 during both growing seasons, which mainly due to that all main yield components in D40N25:75 treatment, such as spikes per unit area, 1000-grain weight, and grains per spike were significantly higher as compared to other treatments. The outcomes of this research may provide a scientific basis of lateral spacing and nitrogen fertigation management for the production of drip-irrigated winter wheat in NCP.

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Section: Effects Of Different Ls and Nam On Grain Yieldsupporting

confidence: 93%

Section: Effects Of Different Ls and Nam On Crop Growthmentioning

confidence: 95%

Suitable nitrogen application mode and lateral spacing for drip-irrigated winter wheat in North China Plain

Zain

Chen

et al. 2021

PLoS ONE

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“…It may also be caused by the difference of capillary arrangement density of drip irrigation. In this study, the maximum distance between one pipe and two rows of Wang et al Journal of Sensors studied the yield of drip irrigation bermudagrass, Lv et al [32] drip irrigation spring wheat yield, and Bozkurt et al [31] drip irrigation corn yield showed a decreasing trend with the decrease of capillary arrangement density. These conclusions are consistent with the conclusion of this study on the yield change of MSPF.…”

Section: Effects Of Capillary Arrangement Density On Photosyntheticmentioning

confidence: 80%

“…Consequently, a foundation was laid out for water-saving crops with high yield, a larger capillary arrangement density results in a more uniform horizontal water content distribution and a higher the leaf photosynthetic rate, chlorophyll, leaf area index, dry matter accumulation, and crop yield. However, the higher capillary arrangement density generally can increase investment cost and reduce crop WUE [8,[30][31][32]. Previous studies have also shown that different emitter spacing can adjust the volume shape and moisture of moist soil.…”

Section: Introductionmentioning

confidence: 99%

Effect of Microsprinkler Irrigation under Plastic Film on Photosynthesis and Fruit Yield of Greenhouse Tomato

et al. 2020

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The aim of this study is to exam the effect of microsprinkler irrigation technology under plastic film (MSPF) and to evaluate the reasonable micropore group spacing and capillary arrangement density in the greenhouse. Compared with drip irrigation under plastic film (DIPF) and microsprinkling irrigation (MSI) conditions, the effects of different micropore group spacing (L1: 30 cm micropore group spacing, L2: 50 cm micropore group spacing) and capillary arrangement density (C1: one pipe for one row, C2: one pipe for two rows, and C3: one pipe for three rows) with the MSPF on photosynthetic characteristics and fruit yield of tomatoes were studied using completely randomized trial design. The results showed that under the same irrigation amount, compared with DIPF and MSI, the photosynthetic rate of tomatoes treated with L1C2 increased by 8.24% and 13.55%, respectively. The total dry matter accumulation, yield, and water use efficiency at condition of L1C2 increased by 12.16%, 19.39%, and 10.03% compared with DIPF and 26.38%, 20.46%, and 31.02% compared with MSI, respectively. The results provide evidence that the MSPF can be applied to greenhouse tomatoes. The photosynthetic rate, total dry matter accumulation, yield, and water use efficiency of tomato leaves cultivated at a micropore group spacing of 30 cm were 1.07, 1.13, 1.14, and 1.13 times higher than those of 50 cm, respectively. With the decrease in capillary arrangement density, the photosynthetic characteristics of the tomato leaves, the total dry matter accumulation, and yield of tomatoes all experienced a decline. It is recommended to use a combination of one pipe for two rows of capillaries at a 30 cm micropore group spacing as the technical parameter of greenhouse tomato with MSPF in arid and semiarid sandy loam soils.

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“…The soil moisture content was determined using soil moisture determination tubes (Profile Probe type, Delta−T Devices, Cambridge, England), according to the method of Lv et al (2019). The soil moisture was measured to a depth of 100 cm (0-20, 20-40, 40-60, and 60-100 cm).…”

Section: Soil Water Content and Water-use Efficiency (Wue)mentioning

confidence: 99%

A moderate reduction in irrigation and nitrogen improves water-nitrogen use efficiency, productivity, and profit under new type of drip irrigated spring wheat system

Wan

Zhao²,

Li³

et al. 2022

Front. Plant Sci.

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Rational irrigation and nitrogen management strategies are crucial for wheat growth. However, the optimal amount of water and nitrogen for the newly developed drip irrigated spring wheat system (TR6S, one drip tube service for six rows of wheat, with a row spacing of 10 cm and an inter-block space of 25 cm, saves drip tubes and obtains higher profits) in dry and semi-arid areas remains unclear. Therefore, a field experiment was conducted with four nitrogen levels (300, 270, 240, and 0 kg ha−1 referred N300, N270, N240, and N0) and four irrigation levels (4500, 4200, 3900, and 3600 m3 ha−1 referred I4500, I4200, I3900, and I3600) during the 2021–2022 and 2022–2023 spring wheat seasons to analyze the effects of irrigation (I) and nitrogen (N) levels on grain yield, water-nitrogen use efficiency, profit, biomass accumulation, and nitrogen nutrient absorption status under TR6S. Compared with the traditional irrigation and nitrogen management strategy (N300–I4500, as control), lesser irrigation and nitrogen supply (I<3979 m3 ha−1 and N<273 kg ha−1) saved cost but led to lower grain yield, water use efficiency (WUE), agronomic efficiency of nitrogen fertilizer (AEN), and profit. However, a moderate reduction in irrigation and nitrogen supply (4500 m3 ha−1>I>3979 m3 ha−1 and 300 kg ha−1 >N>273 kg ha−1) improved grain yield, WUE, AEN, and profit. The increase in grain yield was mainly related to the rise in 1000-grain weight and kernels per spike. Although the moderate reduction in irrigation lowered soil moisture status, the dry matter pre-stored in the vegetative organs before anthesis that gets redistributed into grains during grain filling was improved. Moreover, the moderate reduction in nitrogen supply resulted in a more reasonable nitrogen nutrition index (NNI) of wheat plant, which improved flag leaf area and chlorophyll relative content (SPAD) at the anthesis stage. This also played a positive role in biomass accumulation and redistributed, yield structure optimization. Considering comprehensively yield, WUE, AEN and profit, combination of 285 kg ha−1 N and 4170 m3 ha−1 I was optimal irrigation and nitrogen application pattern for TR6S. This strategy can be applied to other arid and semi-arid regions.

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Impacts of lateral spacing on the spatial variations in water use and grain yield of spring wheat plants within different rows in the drip irrigation system

Cited by 19 publications

References 45 publications

Suitable nitrogen application mode and lateral spacing for drip-irrigated winter wheat in North China Plain

Suitable nitrogen application mode and lateral spacing for drip-irrigated winter wheat in North China Plain

Effect of Microsprinkler Irrigation under Plastic Film on Photosynthesis and Fruit Yield of Greenhouse Tomato

A moderate reduction in irrigation and nitrogen improves water-nitrogen use efficiency, productivity, and profit under new type of drip irrigated spring wheat system

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